| Price from | €2.99/mo | $0.03/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | — |
| Plans published | 7 | 6 |
| Spec score · Online fax services | 7.8 (#58) | 8.9 (#9) |
| Spec score · Online Fax Services | 7.7 (#66) | 8.6 (#24) |
| Compliance support | gdpr | hipaa |
| Document handling | Users can upload PDFs and photos, preview pages, reorder or rotate them, and remove pages before sending. | The portal accepts PDF, AI, DOC, DOCX, RTF, JPG, PNG, and GIF files, merges multiple attachments into one file, and does not charge for cover pages. |
| Free plan | No | No |
| Inbound faxing | No | Yes |
| International faxing | Yes | Yes |
| Service | Faxfix lets users write or upload a document and send it as a fax or letter online. | FaxSalad lets customers send and receive faxes from email, a smartphone, and online. |
| Support | The FAQ directs users with questions about destinations, documents, payments, or delivery results to email support. | FaxSalad says its support team responds to contact form inquiries and support cases within 24 hours. |
| Virtual fax number | No | Yes |
